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authorBen Dooks <ben@simtec.co.uk>2007-02-14 13:17:49 +0100
committerJaroslav Kysela <perex@suse.cz>2007-05-11 16:55:35 +0200
commitc1422a6658ef6101fc5a979021487c732cb177a1 (patch)
treecfbf42245474cdd7720ad1e356ecd2d21b684712 /sound/soc/s3c24xx/s3c24xx-i2s.h
parentlocks: fix F_GETLK regression (failure to find conflicts) (diff)
downloadlinux-c1422a6658ef6101fc5a979021487c732cb177a1.tar.xz
linux-c1422a6658ef6101fc5a979021487c732cb177a1.zip
[ALSA] ASoC Samsung S3C24xx I2S support
This patch by Ben Dooks from Simtec Electronics adds ASoC I2S support for the Samsung S3C24xx CPU. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Graeme Gregory <gg@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/soc/s3c24xx/s3c24xx-i2s.h')
-rw-r--r--sound/soc/s3c24xx/s3c24xx-i2s.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.h b/sound/soc/s3c24xx/s3c24xx-i2s.h
new file mode 100644
index 000000000000..f9ca04edacb7
--- /dev/null
+++ b/sound/soc/s3c24xx/s3c24xx-i2s.h
@@ -0,0 +1,35 @@
+/*
+ * s3c24xx-i2s.c -- ALSA Soc Audio Layer
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Revision history
+ * 10th Nov 2006 Initial version.
+ */
+
+#ifndef S3C24XXI2S_H_
+#define S3C24XXI2S_H_
+
+/* clock sources */
+#define S3C24XX_CLKSRC_PCLK 0
+#define S3C24XX_CLKSRC_MPLL 1
+
+/* Clock dividers */
+#define S3C24XX_DIV_MCLK 0
+#define S3C24XX_DIV_BCLK 1
+#define S3C24XX_DIV_PRESCALER 2
+
+/* prescaler */
+#define S3C24XX_PRESCALE(a,b) \
+ (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
+
+u32 s3c24xx_i2s_get_clockrate(void);
+
+#endif /*S3C24XXI2S_H_*/